Collagen is a protein that is part of cartilage, bone, and other tissues in animals and humans. People use collagen from chickens for medicine. Chicken collagen is used to treat joint pain associated with many types of arthritis and surgery, as well as back pain, neck pain, and pain following injury.
Hemophilia is diagnosed with blood tests to determine if clotting factors are missing or at low levels, and which ones are causing the problem. If you have a family history of hemophilia, it is important that your doctors know the clotting factor your relatives are missing. You will probably be missing the same one.
Since men with the genetic mutation will have hemophilia, a man who does not have the condition cannot be a carrier of the disease. A woman who has a son with known hemophilia is termed an obligate carrier, and no testing is needed to establish that she is a carrier of hemophilia. Women whose carrier status is unknown can be evaluated either by testing for the clotting factors or by methods to characterize the mutation in the DNA.